The mbox_chan_ops structure can be const as it is only stored in the ops field of an mbox_controller structure and this field is const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx> --- drivers/mailbox/hi3660-mailbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mailbox/hi3660-mailbox.c b/drivers/mailbox/hi3660-mailbox.c index 3eea6b642484..c3fd1f2b797f 100644 --- a/drivers/mailbox/hi3660-mailbox.c +++ b/drivers/mailbox/hi3660-mailbox.c @@ -206,7 +206,7 @@ static int hi3660_mbox_send_data(struct mbox_chan *chan, void *msg) return 0; } -static struct mbox_chan_ops hi3660_mbox_ops = { +static const struct mbox_chan_ops hi3660_mbox_ops = { .startup = hi3660_mbox_startup, .send_data = hi3660_mbox_send_data, };